一种脱细胞基质双网络水凝胶及其制备方法和应用

By using heparin-loaded decellularized matrix dual-network hydrogels with interpenetrating network structures and photocrosslinking technology, the problems of untunable mechanical properties and insufficient bioactivity of existing microcarriers have been solved. This enables precise control of the mechanical properties of the hydrogels and maintenance of their bioactivity, making them suitable for nerve tissue repair.

CN121895598BActive Publication Date: 2026-07-17EAST CHINA UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
EAST CHINA UNIV OF SCI & TECH
Filing Date
2026-03-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing single decellularized matrix microcarriers have fixed and unadjustable mechanical properties, making it difficult to match the differentiated needs of different tissue repair stages, and also difficult to simultaneously retain bioactivity and simulate complex extracellular microenvironments.

Method used

A heparin-loaded decellularized matrix dual-network hydrogel was used, which formed an interpenetrating network structure by mixing (meth)acrylamide gelatin with the decellularized matrix. Combined with photocrosslinking and amidation reactions, the mechanical properties and bioactivity of the hydrogel were adjusted.

Benefits of technology

It achieves precise control over the mechanical properties of hydrogels, provides a neural-specific microenvironment, supports deep cell infiltration and long-term sustained release of heparin, and adapts to the dynamic needs of different tissue repair stages.

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Abstract

本发明公开了一种脱细胞基质双网络水凝胶及其制备方法和应用。具体地,本发明提供了一种脱细胞基质双网络水凝胶,其具有由脱细胞基质热凝胶化形成的第一网络,和(甲基)丙烯酰化明胶形成的第二网络,两种网络相互穿插,形成双网络水凝胶。所述水凝胶兼具优良的生物相容性、可调控的物理性能及主动的生物信号调控能力,可作为一种平台化材料,在组织修复与再生医学领域,尤其是在神经再生与干细胞增殖和诱导分化方面,具有优异的应用前景。
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